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20 lines
568 B
Python
Executable File
20 lines
568 B
Python
Executable File
#!/usr/bin/python3
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# This script writes the board ID to the EEPROM in the OSD3358 and reads
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# it back afterwards. I ran it on another pocketbealge using i2c-2, but
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# it would probably work on other boards with a i2c peripheral
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import io
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import fcntl
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# I think this is python ioctl/i2c specific? not sure
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IOCTL_I2C_SLAVE = 0x0703
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# open the I2C device and set it up to talk to the slave
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f = io.open("/dev/i2c-2", "wb+", buffering=0)
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fcntl.ioctl(f, IOCTL_I2C_SLAVE, 0x10)
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# f.write(bytearray([0x30, 0x70, 0x01, 0x00]))
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f.write(bytearray([0x30, 0x70, 0x00, 0x00]))
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